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4ddfec930c
Add a fallback definition of PTRACE_ATTACH that is an alias of PT_ATTACH. Change the 4th argument of ptrace(2) to 0 as it is compatible with void * (Linux) and int (NetBSD) arguments. Include <sys/types.h> for <sys/ptrace.h>. gdb/testsuite/ChangeLog: * gdb.base/attach-twice.c: Include "sys/types.h". (PTRACE_ATTACH): Add fallback definition. (main): Pass `0' to the 4th argument of `ptrace'.
51 lines
1.3 KiB
C
51 lines
1.3 KiB
C
/* This testcase is part of GDB, the GNU debugger.
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Copyright 2011-2020 Free Software Foundation, Inc.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>. */
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#include <stdio.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include <sys/types.h>
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#include <sys/ptrace.h>
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#include <errno.h>
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#ifndef PTRACE_ATTACH
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#define PTRACE_ATTACH PT_ATTACH
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#endif
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int
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main (void)
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{
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long l;
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switch (fork ())
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{
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case -1:
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perror ("fork");
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exit (1);
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case 0:
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errno = 0;
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/* The 4th argument to ptrace () is 0 on purpose, as it is compatible
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between kernels that accept void* (like Linux) and int (NetBSD). */
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ptrace (PTRACE_ATTACH, getppid (), NULL, 0);
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if (errno != 0)
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perror ("PTRACE_ATTACH");
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break;
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}
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sleep (600);
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return 0;
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}
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